# Just copied this code from Python 3.6.
class itemgetter:
"""
Return a callable object that fetches the given item(s) from its operand.
After f = itemgetter(2), the call f(r) returns r[2].
After g = itemgetter(2, 5, 3), the call g(r) returns (r[2], r[5], r[3])
"""
__slots__ = ('_items', '_call')
def __init__(self, item, *items):
if not items:
self._items = (item,)
def func(obj):
return obj[item]
self._call = func
else:
self._items = items = (item,) + items
def func(obj):
return tuple(obj[i] for i in items)
self._call = func
def __call__(self, obj):
return self._call(obj)
def __repr__(self):
return '%s.%s(%s)' % (self.__class__.__module__,
self.__class__.__name__,
', '.join(map(repr, self._items)))
def __reduce__(self):
return self.__class__, self._items